package com.wzy.java;

public class test1 {
    public static void main(String[] args) {
        String s1 = "ab";
        String s2 = "a" + "b";
        String s3 = "a";
        String s4 = "b";
        String s5 = s3 + s4;

        System.out.println(s1 == s2);
        System.out.println(s5 == s2);
        System.out.println(888888);

    }
}
